Innovative Fiber Optic Technology for advanced performanceHEINE HiLite® fiber bundle with 4.3mm dia. and up to 6500 individual micro-fibers for improved light transmission and longer life.Both ends of the large fiber bundle (4.3mm Ø) are protected – for life.Integrated Fiber Optics for the best possible illumination.With the alternative of LED or XHL illumination: With either 3x or 40% brighter light as with conventional halogen bulbs.With Classic+ there are no connecting screws to get lost, no external light pathways to get wrong and no tricky openings or crevices to get dirty – a major contribution to eliminating cross-infection.Smooth shape avoids sharp edges and cavities for easy cleaning and sterilizing.These blades need no maintenance – ever.2.5V battery or 3.5V rechargeable power for even more light.Compatible with all handles to the ISO 7376 (green standard).High quality stainless steel construction.HEINE guarantees all blades with HiLite fiber bundles for 5 years. 4000 standard autoclave cycles of 134 °C / 5min. with more than 1000 lux.